The Inquirer subscribed my parents and billed them. My parents were too polite to pay after disputing it with them.

The Inquirer tried that with me when I bought my house. I told them they played that game with my parents and I wasn't paying.

Talk to your credit card company and explain you tried to reach out to them and you wish to cancel and they are not responsive. Tell your credit card company that you no longer wish to pay. You have to try.